qemu: Exit job on error path of qemuDomainSetVcpusFlags()

Commit e105dc98 moved some code but
didn't adjust the jump labels so that the job would be terminated.

(cherry picked from commit 0df2f040)

src/qemu/qemu_driver.c

@@ -4604,13 +4604,13 @@ qemuDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
 
     if (flags & VIR_DOMAIN_AFFECT_LIVE && !(flags & VIR_DOMAIN_VCPU_GUEST)) {
         if (virCgroupNewEmulator(priv->cgroup, false, &cgroup_temp) < 0)
-            goto cleanup;
+            goto endjob;
 
         if (!(all_nodes = virNumaGetHostNodeset()))
-            goto cleanup;
+            goto endjob;
 
         if (!(all_nodes_str = virBitmapFormat(all_nodes)))
-            goto cleanup;
+            goto endjob;
 
         if (virCgroupGetCpusetMems(cgroup_temp, &mem_mask) < 0 ||
             virCgroupSetCpusetMems(cgroup_temp, all_nodes_str) < 0)